refactor: simplify settings page layout

frontend/src/routes/(root)/settings/+layout.svelte

@@ -1,7 +1,5 @@
 <script lang="ts">
-	import * as Sidebar from '$lib/components/ui/sidebar/index.js';
 	import { page } from '$app/state';
-	import Separator from '$lib/components/ui/separator/separator.svelte';
 	let { children } = $props();
 
 	const items = [
@@ -12,40 +10,29 @@
 		{
 			title: 'Libraries',
 			url: '/settings/libraries'
+		},
+		{
+			title: 'Devices',
+			url: '/settings/devices'
 		}
 	];
 </script>
 
 <div class="flex h-[calc(100vh-var(--header-height)-2rem)] flex-col">
 	<h1 class="text-xl font-bold">Settings</h1>
-	<Separator class="my-4" />
-	<div class="flex flex-1 gap-6 overflow-hidden">
-		<div class="flex gap-8">
-			<Sidebar.Provider class="shrink-0">
-				<Sidebar.Inset>
-					<Sidebar.Content>
-						<Sidebar.Group class="flex flex-col gap-1">
-							{#each items as item}
-								<Sidebar.MenuItem class="w-48">
-									<Sidebar.MenuButton
-										class="rounded hover:bg-muted {page.url.pathname.endsWith(item.url)
-											? 'bg-muted'
-											: ''}"
-									>
-										{#snippet child({ props })}
-											<a href={item.url} {...props}>
-												<span class="text-base">{item.title}</span>
-											</a>
-										{/snippet}
-									</Sidebar.MenuButton>
-								</Sidebar.MenuItem>
-							{/each}
-						</Sidebar.Group>
-					</Sidebar.Content>
-				</Sidebar.Inset>
-			</Sidebar.Provider>
-		</div>
-		<Separator orientation="vertical" class="self-stretch" />
-		<div class="mx-2 mt-2 flex-1 overflow-auto">{@render children()}</div>
+	<div class="mt-6 flex flex-1 gap-8 overflow-hidden">
+		<nav class="flex w-48 shrink-0 flex-col gap-1">
+			{#each items as item}
+				<a
+					href={item.url}
+					class="rounded-md px-3 py-2 text-sm font-medium transition-colors hover:bg-muted {page.url.pathname.endsWith(item.url)
+						? 'bg-muted'
+						: 'text-muted-foreground'}"
+				>
+					{item.title}
+				</a>
+			{/each}
+		</nav>
+		<div class="flex-1 overflow-auto">{@render children()}</div>
 	</div>
 </div>